結果
問題 | No.1364 [Renaming] Road to Cherry from Zelkova |
ユーザー | kappybar |
提出日時 | 2021-01-22 22:11:17 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,111 bytes |
コンパイル時間 | 1,650 ms |
コンパイル使用メモリ | 180,380 KB |
実行使用メモリ | 21,888 KB |
最終ジャッジ日時 | 2024-06-08 15:13:28 |
合計ジャッジ時間 | 10,688 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | AC | 60 ms
7,936 KB |
testcase_24 | AC | 66 ms
5,504 KB |
testcase_25 | AC | 154 ms
11,520 KB |
testcase_26 | AC | 243 ms
14,848 KB |
testcase_27 | AC | 189 ms
11,392 KB |
testcase_28 | AC | 109 ms
9,472 KB |
testcase_29 | AC | 195 ms
11,008 KB |
testcase_30 | AC | 114 ms
9,600 KB |
testcase_31 | AC | 77 ms
8,832 KB |
testcase_32 | AC | 147 ms
10,240 KB |
testcase_33 | AC | 234 ms
13,056 KB |
testcase_34 | AC | 203 ms
13,568 KB |
testcase_35 | WA | - |
testcase_36 | WA | - |
testcase_37 | AC | 152 ms
8,832 KB |
testcase_38 | WA | - |
testcase_39 | WA | - |
testcase_40 | WA | - |
testcase_41 | WA | - |
testcase_42 | WA | - |
testcase_43 | AC | 94 ms
16,640 KB |
testcase_44 | AC | 73 ms
13,360 KB |
testcase_45 | AC | 92 ms
15,104 KB |
testcase_46 | AC | 7 ms
9,088 KB |
testcase_47 | WA | - |
ソースコード
#include <bits/stdc++.h> #define rep(i,n) for(int i=0;i<(int)(n);i++) #define chmin(x,y) x = min((x),(y)); #define chmax(x,y) x = max((x),(y)); using namespace std; using ll = long long ; using P = pair<int,int> ; using pll = pair<long long,long long>; const int INF = 1e9; const long long LINF = 1e17; const int MOD = 1000000007; //const int MOD = 998244353; const double PI = 3.14159265358979323846; template<int mod> struct ModInt{ long long x=0; constexpr ModInt(long long x=0):x((x%mod+mod)%mod){} constexpr ModInt operator+(const ModInt& r)const{return ModInt(*this)+=r;} constexpr ModInt operator-(const ModInt& r)const{return ModInt(*this)-=r;} constexpr ModInt operator*(const ModInt& r)const{return ModInt(*this)*=r;} constexpr ModInt operator/(const ModInt& r)const{return ModInt(*this)/=r;} constexpr ModInt& operator+=(const ModInt& r){ if((x+=r.x)>=mod) x-=mod; return *this;} constexpr ModInt& operator-=(const ModInt& r){ if((x-=r.x)<0) x+=mod; return *this;} constexpr ModInt& operator*=(const ModInt& r){ if((x*=r.x)>=mod) x%=mod; return *this;} constexpr ModInt& operator/=(const ModInt& r){ return *this*=r.inv();} ModInt inv() const { long long s=x,sx=1,sy=0,t=mod,tx=0,ty=1; while(s%t!=0){ long long temp=s/t,u=s-t*temp,ux=sx-temp*tx,uy=sy-temp*ty; s=t;sx=tx;sy=ty; t=u;tx=ux;ty=uy; } return ModInt(tx); } ModInt pow(long long n) const { ModInt a=1; ModInt b=*this; while(n>0){ if(n&1) a*=b; b*=b; n>>=1; } return a; } friend constexpr ostream& operator<<(ostream& os,const ModInt<mod>& a) {return os << a.x;} friend constexpr istream& operator>>(istream& is,ModInt<mod>& a) {return is >> a.x;} }; using mint = ModInt<MOD>; vector<int> ToplogicalSort(vector<vector<int>> &G,vector<int> &Indegree){ int n = (int)G.size(); vector<int> res(n); queue<int> q; for(int i=0;i<n;i++){ if(Indegree[i] == 0){ q.push(i); } } int i = 0; while(!q.empty()){ int now = q.front(); res[i++] = now; q.pop(); for(int v:G[now]){ --Indegree[v]; if(Indegree[v] == 0) q.push(v); } } if(i==n) return res; else return {-1}; } struct edge{ ll to; ll l,a; }; mint dp[100005]; mint cnt[100005]; int main(){ int n,m; cin >> n >> m; vector<vector<int>> G(n+1); vector<vector<edge>> graph(n+1); vector<int> Indegree(n+1,0); rep(i,m){ ll u,v,l,a; cin >> u >> v >> l >> a; G[u].push_back(v); graph[u].push_back(edge{v,l,a}); Indegree[v]++; } vector<int> topo = ToplogicalSort(G,Indegree); if(topo[0]==-1){ cout << "INF" << endl; return 0; } dp[0] = 0; cnt[0] = 1; for(int i:topo){ for(auto e:graph[i]){ dp[e.to] += dp[i] + cnt[i] * e.a * e.l; cnt[e.to] += cnt[i] * e.a; } } cout << dp[n] << endl; return 0; }